Retirement is often seen as a time of well-earned security, yet many retirees find themselves struggling financially sooner than expected. Seemingly minor choices, overlooked expenses, and ingrained habits can quietly erode even the most carefully built nest eggs. Without awareness and proactive planning, retirees may fall into common traps that gradually undermine their financial health. Recognizing these hidden pitfalls is the first step toward maintaining lasting stability. This article explores 23 surprising ways retirees unknowingly drain their wealth—and what you can do to avoid them.